Hey everyone, I’m currently planning on what to purchase for my 2016 Nissan Maxima SR (with Bose 11 speaker system)

currently I have a LC2iPro pulling subwoofer signals from the rear deck speakers, then I have the LC2iPro wired to a pioneer amplifier, which is running my two 12” subwoofers in the truck (also pioneer)
Had to deactivate ANC but after I did that it works amazingly! Bass is slamming.

Now my predicament is I would like to replace the front door speakers and pillar tweeters (planning on leaving the dash speakers and center speaker alone)

My plan was to purchase the JL Audio FiX 86 DSP, along with a new amplifier and component speakers for my front stage.

My question is where could I wire in the DSP? I know there isn’t a full range signal atall in this car, I’m also aware of Channel Summing. So would I be on the right path to just splice wires from each signal speaker (treble, mid, then bass) into my DSP, then from there wiring the DSP to my new amp? Which can then be wired to the new speakers replacing the front door ones.

is there a load sensing feature that would cut off sound if it doesn’t sense a speaker there? How will my Bose amp react to this install if I didn’t have the factory Bose amp pushing my front stage. Would it still feed the rear speakers and front dash with sound?

Theres just a lot of info to take in, and I don’t wanna mess anything up installing anything! I’ve done a few small builds before but nothing crazy, not a fan dealing with Bose too much!